Boswell Books: David Grann “Killers of the Flower Moon: The Osage Murders and the Birth of the FBI,” 7 p.m. July 17, Evelyn Perry “Live and Let Live: Diversity, Conflict, and Community in an Integrated Neighborhood,” 7 p.m. July 18, 2559 N. Downer Ave., (414) 332-1181.